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Yes, it's all very vague, at the PGA show they spent 10 minutes on a golf mat, but when they came to r motion stall they glimpsed over it, no in depth showing of what this thing does. I wouldn't hold your breath. You can come to conclusions on a lack of evidence. Even the title thing doesn't seem to be going nowhere .
Rep from Rapsodo said a 10 pack of clips costs $89. You can upgrade to the full TGC sim with online play for $500.
That being said, I have found no user reviews anywhere (beta testing reviews????) and there is not even an option to purchase one on the Rapsodo website. Maybe you have to contact them first but it seemed strange.
If I get the R-Motion and upgrade to the full TGC SIM, will/can that software transfer if I upgrade to a SkyTrak? It would suck to pay $500 now and then upgrade to a launch monitor and have to pay another large amount for the same software. Thanks.
Skytrack integration with TGC can only be bought through Skygolf, so no, can't tranfer. Also they are different prices, so I don't see how that'd be "fair" to non-R Motion users.
You definitely need a ball as it doesn't register practice swings and knows when impact occurs. I'm just wondering if an almost golf ball is enough of an impact.
Is the need for a ball confirmed by Rapsodo or Protee?? I know that the one on kickstarter comes with an end-weighted "swing-stick" that you can use. You can also mount to your clubs. The skypro does seem to need some impact, and has a mode to work with almost balls. IIRC, the zepp will record without balls. I suppose it would make sense that if you want to understand angle of attack, you would need to feel the impact to know where in the swing the contact occurred.
FaultyClubs I was agreeing, that it is better to know the path at impact. Also, from sampling standpoint... understanding the path is relatively easy compared to the face angle.
Just doing what engineers do - making conversation about how they solved the problem, and wondering how we could do it differently or better.
You know..... the optimist says the glass is half-full, the pessimist says half-empty, and the engineer says it's a faulty design.
I wish I could find the reference that one of the swing analyzer manuals makes as to why they don't offer the metric of face angle at impact. I always assumed that it was a challenge for the reasons mentioned - if Rapsodo has cleared what seemed to be a hurdle in getting the answer, that's exciting. (to me at least) If they want to elaborate on the sampling frequency and accuracy, that would be fun too. I'd also like to know if attack angle is figured into the ball flight model.
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"..... I've read somewhere that the face closer rate can be as high as 5-6,000 degrees per second at impact and I believe the two devices that I have sample at a rate of 3,600 per second...."
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An ITG-3701 gyro will measure up to 4000 degrees per second. That's measure, not sample. The gyro data is sampled up to 32khz (settable).
Your stated 5k-6k closure rate seems high to me. It would be interesting to confirm actual face closure rates. I'm thinking 4k should be enough but time will tell.
If you have more info on what the actual problem is that would be interesting.
FaultyClubs Okay - maybe 5-6k deg/sec is big (I can't find the thread where I saw that) I did finally find this - from one of the other GSA units.
Why is Face Angle @ Impact not a checkpoint ....?
The reason it's not represented by a number in the app is because we're not yet comfortable reporting it. The problem we have (which is common to all devices that use our type of sensors) is identifying the precise time of impact. We’ve recorded club face’s closing at over 2000°/s near the ball. At this speed, a tiny 1 ms error in impact time will result in a 2° error in face angle - enough to significantly alter the ball flight. This is why a high sample rate matters so much. We read our sensors at a maximum of 3200 samples per second: overkill for most of the swing, but crucial for resolving impact time accurately. If the ball was always hit cleanly off a tee we'd be in the clear, but fat shots can skew the results. We do correct for fat shots already, but want to be absolutely sure our numbers are accurate in the vast majority of situations before releasing them.
We've been working with some high speed cameras and other test equipment that will better identify actual ball impact, and it's looking promising so far. So, to summarize: we will continue to work towards a Face Angle @ Impact number you can trust.
Bubba22 But, is it automatic for each swing? Or, is there some procedure you have to do to each club to get the clip in a known position? Just knowing that some guys set up with way open or closed faces, but come through the ball with desired face-to-path.
Rapsodo Any chance that this will ever be ported to work with the Xbox version of TGC? I have the kids XBox HDMI output split to the projector in my sim bay. It would be so cool if the R-Motion could BT pair with the xBox and control TGC on that platform. I could tell the kids to stay away from my Sim pc and my skytrak if I'm not around. Short of that, it sounds like I'd need a THIRD verion of TCG running in addition to the Xbox and Sim PC to use the r-motion for sim - right?
Rapsodo, Has the battery life of the sensor been tested? How long does it take before the battery life goes down from the 4 hours advertised. I imagine burning the battery down to 0 and then recharging takes some type of toll on it. Also, was it tested to determine how long/how many swings it took before the sensor degraded in reading the swing as it should?
Is there a plan or option to just replace the sensor? Thanks.
Yes the battery life has been tested extensively. 4 hours is a guidance and it bears certain assumptions such as number of hits you take. Depending on how many shots you take and how often, the duration may be longer and shorter. Our objective is to have a nice round of golf without having to recharge while keeping the unit small and lightweight.
We currently do not offer sensor as a standalone unit, however as things evolve, we do not overrule this possibility.
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